Specification for classification of water expansion rubber water stopping strips:
1, according to the process is divided into: product type (PZ), water expansion rubber, waterproof belt and putty type (PN), water expansion rubber, water belt two.
2, according to the volume expansion rate is divided into: PZ-150, PZ-250, PZ-400, PZ-600 and PN150, PN220, PN300 etc..
Brief introduction of water expansion rubber water stop belt:
Water swellable rubber sealing strip is imported with special rubber as the main raw material, with a rubber strip products of inorganic absorbent, high viscosity resin and so on more than ten kinds of special material by mixing, mixing, extrusion and the. The water expansion rubber water stopping belt does not refer to the expansion of the water stopping pipe itself, but is a kind of water stopping belt which is expanded on the basis of the common embedded rubber water stopping belt. The expanding part is the expansion line. In addition to the performance of the rubber water stop belt, the expansion rubber water stopping belt is c h a racterized in that the inner water proof line is made of rubber with water expansion property. Under the action of expansion rubber, the water stopping belt starts to expand with the water, and the tightness of the water stopping belt and the structure is enhanced, and the waterproof effect and the water stopping effect are better.
Construction method of water swelling rubber water stopping belt:
1, first of all, water swelling rubber sealing tape materials approach acceptance, re examination；
2, in the design of water expansion rubber water stop position, set aside the groove, reserved groove width and depth should be with water expansion water stop width of the corresponding should leave；
3, before pouring the next concrete, will meet the water expansion rubber waterproof belt into the groove, pay attention to the joint position should be good, and cement nails；
4, in case of water expansion rubber water stop fixed after completion of the supervision and acceptance, you can pour concrete.
5, after the completion of the casting, the water expansion rubber waterproof belt will expand to play a role in sealing off water.
Notes on installation of water expansion rubber water stopping belt:
1, water expansion rubber waterproof belt, not for a long time a day exposure, prevent rain, dont and pollution of strong chemicals contact.
2, in transportation and construction, to prevent mechanical, steel damage, water expansion rubber water stop.
3, during construction, water expansion rubber water stop belt must be reliably fixed to avoid moving in the pouring concrete, and ensure the correct setting of water stop belt in concrete.
4, the fixed water swellable rubber waterstop methods are: using additional reinforcement fixed and special fixture fixed, the wire and the fixed template, such as perforation, can only choose the installation area on the strip edge, not to damage other department.
5, the user order should be based on the engineering design drawings, calculate the length of products, have special structure drawings and specifications, as far as possible in the factory, water swellable rubber sealing belt are connected into a whole, such as site connection, can use electric heating plate vulcanization bonding or cold bonding or welding method.